unable to insert multiple listbox items in to database

insertcommand.parameters.add("@packagemaster",sqldbtype.varchar,500).value=selectedlist.items;

here insertcommand is stored procedure,selected list is list box,packagemaster is column name

when i try to insert multiple list items in to pakagemaster column using items property  it was not working.....so suggest me  to handle this situation
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life_jAsked:
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BinuthConnect With a Mentor Commented:
which version of DB you using ?
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BinuthCommented:
pass as xml parameter to Sp and use sp_xml_preparedocument sp to insert xml values to Tabel
(see sample code)
C# code building Xml parameter
---------------
 
System.Xml.XmlDocument objXMLDocument = null;
System.Xml.XmlElement objXMLElement = null;
System.Xml.XmlElement objXMLChildElement = null;
 
//Bulding XML Document for Statistical Ranges
objXMLDocument = new System.Xml.XmlDocument();
objXMLDocument.LoadXml("<root/>");
 
objXMLElement = objXMLDocument.DocumentElement;
 
foreach (string sItem in listBox1.SelectedItems)
{
	objXMLChildElement = objXMLDocument.CreateElement("packagemaster");
	objXMLChildElement.SetAttribute("Pkey" , sItem);
	objXMLElement.AppendChild(objXMLChildElement);
}
 
// pass objXMLDocument.OuterXml to Sp parameter
insertcommand.parameters.add("@vchXMLParms" , sqldbtype.varchar , 8000).value = objXMLDocument.OuterXml;	 
 
 
sample Sp
---------
 
 
ALTER proc InsertSp(@vchXMLParms VARCHAR(MAX))
AS
 
DECLARE @xmldocHandle AS INT
EXEC sp_xml_preparedocument @xmldocHandle OUTPUT, @vchXMLParms
 
 insert into YourTableName(packagemaster)
 SELECT Pkey FROM OPENXML(@xmldocHandle, '/root/packagemaster', 1)WITH(Pkey VARCHAR(MAX))
 
EXEC sp_xml_removedocument @xmldocHandle

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life_jAuthor Commented:
im using using sql server 2005 as DB...could u tell me d solution in c# coding
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